Meris Hedra — 3-Voice Rhythmic Pitch Shifter

A rhythmic pitch shifter with three pitch shifters and linked delay lines, built for complex rhythmic pitch shifting, harmonies, and polyrhythms. Each of its three voices has independent transposition (up to two octaves up or down) and delay time, all housed in a compact 5"x4" enclosure.

- Deep harmonic control: key/scale selection sets the available notes for pitch shifting, with two octaves of range above and below the base note.

- Rhythmic delay engine: tap-tempo delay with feedback and up to 520ms, with four selectable delay modes — from long series delay to dual stereo lines with cross feedback.

- Pitch correction & glide: choose no correction, loose correction, or strict pitch correction (with a stair-step effect), or add glide for smooth sliding between notes.

- Studio-grade conversion: 24-bit A-D/D-A conversion with 32-bit floating-point DSP, plus switchable input/output headroom for guitar, keyboards, or line-level signals.

- Expressive control: expression pedal input controls every parameter, morphing between two full settings; MIDI note and clock input lets you play pitches directly from a keyboard.

- Stereo in/out, relay true bypass, and MIDI I/O for live and studio flexibility

Hedra is one of the finest harmonizer pedals on the market — praised for gorgeous tone, deep customization, and exceptional harmonic capabilities, nothing really sounds like it.